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Public Member Functions | Private Member Functions | Private Attributes

SamplingAlgorithm Class Reference

Algorithm for latency run. More...

#include <SamplingAlgorithm.h>

Inheritance diagram for SamplingAlgorithm:
CommissioningAlgorithm

List of all members.

Public Member Functions

const Histohisto () const
 SamplingAlgorithm (const edm::ParameterSet &pset, SamplingAnalysis *const, uint32_t latencyCode=0)
virtual ~SamplingAlgorithm ()

Private Member Functions

void analyse ()
void correctBinning (TProfile *prof) const
void correctProfile (TProfile *profile, float SoNcut=3.) const
virtual void extract (const std::vector< TH1 * > &)
void pruneProfile (TProfile *profile) const
 SamplingAlgorithm ()

Private Attributes

TF1 * deconv_fitter_
Histo histo_
uint32_t latencyCode_
TF1 * peak_fitterA_
TF1 * peak_fitterB_
SamplingAnalysissamp_

Detailed Description

Algorithm for latency run.

Author:
C. Delaere

Definition at line 18 of file SamplingAlgorithm.h.


Constructor & Destructor Documentation

SamplingAlgorithm::SamplingAlgorithm ( const edm::ParameterSet pset,
SamplingAnalysis * const  anal,
uint32_t  latencyCode = 0 
)

Definition at line 18 of file SamplingAlgorithm.cc.

References deconv_fitter_, fdeconv_convoluted(), fpeak_convoluted(), peak_fitterA_, and peak_fitterB_.

  : CommissioningAlgorithm(anal),
    histo_(0,""),
    deconv_fitter_(0),
    peak_fitterA_(0),
    peak_fitterB_(0),
    latencyCode_(latencyCode),
    samp_(0)
{
   peak_fitterA_ = new TF1("peak_fitterA",fpeak_convoluted,-4800,0,5);
   peak_fitterA_->SetNpx(2000);
   peak_fitterA_->FixParameter(0,0);
   peak_fitterA_->SetParLimits(1,0,4800);
   peak_fitterA_->SetParLimits(2,0,20);
   peak_fitterA_->FixParameter(3,50);
   peak_fitterA_->SetParLimits(4,0,75);
   peak_fitterA_->SetParameters(0.,1250,10,50,10);

   peak_fitterB_ = new TF1("peak_fitterB",fpeak_convoluted,-100,100,5);
   peak_fitterB_->SetNpx(200);
   peak_fitterB_->FixParameter(0,0);
   peak_fitterB_->SetParLimits(1,-100,100);
   peak_fitterB_->SetParLimits(2,0,20);
   peak_fitterB_->FixParameter(3,50);
   peak_fitterB_->SetParLimits(4,0,75);
   peak_fitterB_->SetParameters(0.,-50,10,50,10);

   deconv_fitter_ = new TF1("deconv_fitter",fdeconv_convoluted,-50,50,5);
   deconv_fitter_->SetNpx(1000);
   deconv_fitter_->FixParameter(0,0);
   deconv_fitter_->SetParLimits(1,-50,50);
   deconv_fitter_->SetParLimits(2,0,200);
   deconv_fitter_->SetParLimits(3,5,100);
   deconv_fitter_->FixParameter(3,50);
   deconv_fitter_->SetParLimits(4,0,75);
   deconv_fitter_->SetParameters(0.,-2.82,0.96,50,20);
}
virtual SamplingAlgorithm::~SamplingAlgorithm ( ) [inline, virtual]

Definition at line 24 of file SamplingAlgorithm.h.

{;}
SamplingAlgorithm::SamplingAlgorithm ( ) [inline, private]

Definition at line 30 of file SamplingAlgorithm.h.

{;}

Member Function Documentation

void SamplingAlgorithm::analyse ( ) [private, virtual]

Performs histogram anaylsis.

Implements CommissioningAlgorithm.

Definition at line 118 of file SamplingAlgorithm.cc.

References sistrip::APV_LATENCY, correctBinning(), correctProfile(), deconv_fitter_, SamplingAnalysis::error_, histo_, i, latencyCode_, max(), SamplingAnalysis::max_, sistrip::mlCommissioning_, peak_fitterA_, peak_fitterB_, pruneProfile(), SamplingAnalysis::runType_, samp_, SamplingAnalysis::sOnCut_, and mathSSE::sqrt().

                                { 

  if ( !samp_ ) {
    edm::LogWarning(mlCommissioning_)
      << "[SamplingAlgorithm::" << __func__ << "]"
      << " NULL pointer to derived Analysis object!";
    return; 
  }

  TProfile* prof = (TProfile*)(histo_.first);
  if ( !prof ) {
    edm::LogWarning(mlCommissioning_)
      << " NULL pointer to histogram!" ;
    return;
  }

  // set the right error mode: rms
  prof->SetErrorOption(" ");

  //that should not be needed, but it seems histos are stored with error option " " and errors "s" in all cases.
  //it MUST be removed if the DQM (?) bug is solved
  for(int i=0;i<prof->GetNbinsX();++i) {
    if(prof->GetBinEntries(i)>0)
      prof->SetBinError(i,prof->GetBinError(i)/sqrt(prof->GetBinEntries(i)));
  }

  // prune the profile
  pruneProfile(prof);

  // correct for the binning
  correctBinning(prof);

  // correct for clustering effects
  correctProfile(prof,samp_->sOnCut_);
  
  // fit depending on the mode
  if(samp_->runType_==sistrip::APV_LATENCY) {

    // initialize  the fit (overal latency)
    float max = prof->GetBinCenter(prof->GetMaximumBin());
    float ampl = prof->GetMaximum();
    peak_fitterA_->SetParameters(0.,50-max,ampl/20.,50,10);

    // fit
    if(prof->Fit(peak_fitterA_,"Q")==0)
      prof->Fit(peak_fitterA_,"QEM");

    // Set monitorables
    samp_->max_   = peak_fitterA_->GetMaximumX();
    samp_->error_ = peak_fitterA_->GetParError(1);

  } else { // sistrip::FINE_DELAY

    // initialize  the fit (overal latency)
    float max = prof->GetBinCenter(prof->GetMaximumBin());
    float ampl = prof->GetMaximum();
    deconv_fitter_->SetParameters(0.,-max,ampl/10.,50,20);
    peak_fitterB_->SetParameters(0.,50-max,ampl/20.,50,10);
    if(latencyCode_&0x80) { // deconv mode
      // fit
      if(prof->Fit(deconv_fitter_,"Q")==0)
         prof->Fit(deconv_fitter_,"QEM");
      // Set monitorables
      samp_->max_   = deconv_fitter_->GetMaximumX();
      samp_->error_ = deconv_fitter_->GetParError(1);
    } else { // peak mode
      // fit
      if(prof->Fit(peak_fitterB_,"Q")==0)
         prof->Fit(peak_fitterB_,"QEM");
      // Set monitorables
      samp_->max_   = peak_fitterB_->GetMaximumX();
      samp_->error_ = peak_fitterB_->GetParError(1);
    }

  }

}
void SamplingAlgorithm::correctBinning ( TProfile *  prof) const [private]

Definition at line 215 of file SamplingAlgorithm.cc.

Referenced by analyse().

{
  prof->GetXaxis()->SetLimits(prof->GetXaxis()->GetXmin()-prof->GetBinWidth(1)/2.,
                              prof->GetXaxis()->GetXmax()-prof->GetBinWidth(1)/2.);
}
void SamplingAlgorithm::correctProfile ( TProfile *  profile,
float  SoNcut = 3. 
) const [private]

Definition at line 223 of file SamplingAlgorithm.cc.

References newFWLiteAna::bin, SamplingAnalysis::correctMeasurement(), SamplingAnalysis::limit(), min, ExpressReco_HICollisions_FallBack::nbins, and samp_.

Referenced by analyse().

{
  if ( !samp_ ) { return; }
  uint32_t nbins=profile->GetNbinsX();
  float min = samp_->limit(SoNcut);
  for(uint32_t bin=1;bin<=nbins;++bin)
    if(profile->GetBinContent(bin)<min) {
      profile->SetBinContent(bin,0.);
      profile->SetBinError(bin,0.);
      profile->SetBinEntries(bin,0);
    }
    else {
      profile->SetBinContent(bin,
                             profile->GetBinEntries(bin)*
                             samp_->correctMeasurement(profile->GetBinContent(bin),SoNcut));
    }
}
void SamplingAlgorithm::extract ( const std::vector< TH1 * > &  ) [private, virtual]

Extracts and organises histograms.

Implements CommissioningAlgorithm.

Definition at line 58 of file SamplingAlgorithm.cc.

References CommissioningAnalysis::addErrorCode(), CommissioningAlgorithm::anal(), sistrip::APV_LATENCY, sistrip::extrainfo::clusterCharge_, CommissioningAlgorithm::extractFedKey(), CommissioningAnalysis::fedKey(), sistrip::FINE_DELAY, SamplingAnalysis::granularity_, histo_, sistrip::mlCommissioning_, sistrip::numberOfHistos_, SamplingAnalysis::runType_, samp_, indexGen::title, tmp, and sistrip::unexpectedTask_.

                                                              {

  if ( !anal() ) {
    edm::LogWarning(mlCommissioning_)
      << "[SamplingAlgorithm::" << __func__ << "]"
      << " NULL pointer to Analysis object!";
    return; 
  }
  
  CommissioningAnalysis* tmp = const_cast<CommissioningAnalysis*>( anal() );
  samp_ = dynamic_cast<SamplingAnalysis*>( tmp );
  if ( !samp_ ) {
    edm::LogWarning(mlCommissioning_)
      << "[SamplingAlgorithm::" << __func__ << "]"
      << " NULL pointer to derived Analysis object!";
    return; 
  }

  // Check
  if ( histos.size() != 1 && histos.size() != 2 ) {
    samp_->addErrorCode(sistrip::numberOfHistos_);
  }
  
  // Extract FED key from histo title
  if ( !histos.empty() ) { samp_->fedKey( extractFedKey( histos.front() ) ); }

  // Extract
  std::vector<TH1*>::const_iterator ihis = histos.begin();
  for ( ; ihis != histos.end(); ihis++ ) {
    
    // Check pointer
    if ( !(*ihis) ) {
      edm::LogWarning(mlCommissioning_) << " NULL pointer to histogram!";
      continue;
    }
    
    // Check name
    SiStripHistoTitle title( (*ihis)->GetName() );
    if ( title.runType() != sistrip::APV_LATENCY && title.runType() != sistrip::FINE_DELAY) {
      samp_->addErrorCode(sistrip::unexpectedTask_);
      continue;
    }
    // Set the mode for later fits
    samp_->runType_ = title.runType();
    
    // Set the granularity
    samp_->granularity_ = title.granularity();

    // Extract timing histo
    if ( title.extraInfo().find(sistrip::extrainfo::clusterCharge_) != std::string::npos ) {
      histo_.first = *ihis;
      histo_.second = (*ihis)->GetName();
    }

  }
  
}
const Histo& SamplingAlgorithm::histo ( ) const [inline]
void SamplingAlgorithm::pruneProfile ( TProfile *  profile) const [private]

Definition at line 198 of file SamplingAlgorithm.cc.

References newFWLiteAna::bin, max(), min, and ExpressReco_HICollisions_FallBack::nbins.

Referenced by analyse().

{
  // loop over bins to find the max stat
  uint32_t nbins=profile->GetNbinsX();
  uint32_t max = 0;
  for(uint32_t bin=1;bin<=nbins;++bin) max = max < profile->GetBinEntries(bin) ? uint32_t(profile->GetBinEntries(bin)) : max;
  // loop over bins to clean
  uint32_t min = max/10;
  for(uint32_t bin=1;bin<=nbins;++bin)
    if(profile->GetBinEntries(bin)<min) {
      profile->SetBinContent(bin,0.);
      profile->SetBinError(bin,0.);
    }
}

Member Data Documentation

Fitter in peak and deconvolution mode

Definition at line 48 of file SamplingAlgorithm.h.

Referenced by analyse(), and SamplingAlgorithm().

pulse shape

Definition at line 45 of file SamplingAlgorithm.h.

Referenced by analyse(), and extract().

uint32_t SamplingAlgorithm::latencyCode_ [private]

latency code for fine delay scans

Definition at line 53 of file SamplingAlgorithm.h.

Referenced by analyse().

Definition at line 49 of file SamplingAlgorithm.h.

Referenced by analyse(), and SamplingAlgorithm().

Definition at line 50 of file SamplingAlgorithm.h.

Referenced by analyse(), and SamplingAlgorithm().

SamplingAnalysis object

Definition at line 56 of file SamplingAlgorithm.h.

Referenced by analyse(), correctProfile(), and extract().